New MFD Printer advice please

Hi

We have decided to bin one of the Epsom colour ink jet printers due to
high refill costs and replace it with a laser.

I have a reasonably good colour ink jet connected to an existing PC.
We will keep this for the occasional colour work. My wife being a
teacher often needs to print work ready for the next day in class from
her wireless laptop. So the criteria I am looking for is as follows:-

1. Laser
2. Wireless
3. Multi-funtion device that can support colour capture (Scanning)
4. Low running costs
5. Not too expensive to purchase

Not too worried about output speed

Thanks in advance

John